/*
 *  Copyright 2013 Alexey Andreev.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.teavm.classlib.java.lang;

import org.teavm.classlib.java.util.stream.TIntStream;
import org.teavm.classlib.java.util.stream.intimpl.TCharSequenceCharsStream;
import org.teavm.classlib.java.util.stream.intimpl.TCharSequenceCodePointsStream;

public interface TCharSequence {
    int length();

    char charAt(int index);

    boolean isEmpty();

    TCharSequence subSequence(int start, int end);

    default TIntStream chars() {
        return new TCharSequenceCharsStream(this);
    }

    default TIntStream codePoints() {
        return new TCharSequenceCodePointsStream(this);
    }

    @Override
    String toString();
}
